Home / 668,987,660.82-923,229,200.52-457,737,581.28

Finding the Fourth Proportional to 668,987,660.82, 923,229,200.52 and 457,737,581.28

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Solution

The fourth proportional to 668,987,660.82, 923,229,200.52 and 457,737,581.28 is: 631,695,808.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,987,660.82 : 923,229,200.52 = 457,737,581.28 : x
  2. Step 2: Convert to fraction form
    668,987,660.82/923,229,200.52 = 457,737,581.28/x
  3. Step 3: Cross multiply
    668,987,660.82x = 923,229,200.52 × 457,737,581.28
  4. Step 4: Simplify right side
    668,987,660.82x = 422,596,701,213,092,864
  5. Step 5: Solve for x
    x = 422,596,701,213,092,864/668,987,660.82
  6. Step 6: Final answer
    x = 631,695,808.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.